Re insulating my generator sound shield

Steve500dancer

Steve500dancer

Member
Jul 13, 2009
868
Franklin Tennessee (Nashville area)
Boat Info
1996 500 sundancer
2001 340 sundancer sold
2001 270 Rinker sold
1996 240 sundancer sold
Engines
Twin 6v92 Detroit deisels
While I have my generator sound Shield is still all apart from being repainted I thought I would go ahead a replace the broken down sound barrier inside.

Does anyone have any leads or comments on the best stuff to use and where to get it. I spoke with Great Southern Insulation solutions in Ft Lauderdale while I was at the boat show in Miami last month,.

Thanks in advance for any info on this stuff,

Steve
 
I'm going through a similar situation right now (replacing the sound insulation on the bottom side of the engine hatch). There's a couple threads going right now about this stuff, but the consensus seems to be either more of the "egg-crate" foam or something better like "Soundown" - the key there is to make sure you get something with a layer of MLV (Mass Loaded Vinyl). soundown.com
 
Thanks for the Info, I actually ordered new insulation from Great Southern Insulation. I met with them at the boat show and was pretty impressed with their products.

The stuff I ordered is 1" think and is supposed to be one of the best sound barriers around. They also gave me a 15% discount and said that if I like the product and posted on CSR they would offer all members the same discount. I ordered 3 sheets of it along with three cans of the adhesive. It was around $250.00 delivered. The package actually weighs 52lbs.

Tonight I finished scrapping most of the old insulation off the sound box. Not much to it. I just used a plastic body filler applicator and it turned to dust. I would have to say that it was pretty much at the end of its life. It looked fine until you touched it and then it just fell apart.


Steve
 
Received my sound insulation from Great South Insulation yesterday. It cut fairly easily with a utility knife and straight edge. Glued it in place tonight with some industrial strength adhesive. I mean high strength. Took me an hour to peel and scrub it off my fingers. Took lacquer thinner and a scrub brush. I think I will use my latex gloves the next time I use that stuff.

Once it was all glued in place I painted all the edges with high heat rust inhibitor again to make sure that it had a good strong second coat and covered up any scratches that I may have put in the edges when trimming the insulation.

I hope to install it tomorrow. If all goes well I will fire up the generator and report back on my findings on the sound deadener.

uvuzubez.jpg

ynajeqes.jpg


Steve
 
Got the sound box back together this weekend and all went great. Except I realized how truly stupid I am. So I ordered 4 new "Thumb Screws from "Westertheives" they charged me $8.80 for each thumb screw. I was installing them when I had to stop for a moment and ask my self what the hell I was thinking. If I had an extra foot....I would have kicked my own ass.

Steve
 
Steve500dancer said:
Got the sound box back together this weekend and all went great. Except I realized how truly stupid I am. So I ordered 4 new "Thumb Screws from "Westertheives" they charged me $8.80 for each thumb screw. I was installing them when I had to stop for a moment and ask my self what the hell I was thinking. If I had an extra foot....I would have kicked my own ass.

Steve
Click to expand...

Did you fire it up.... good sound insulation?
 
Steve500dancer said:
Got the sound box back together this weekend and all went great. Except I realized how truly stupid I am. So I ordered 4 new "Thumb Screws from "Westertheives" they charged me $8.80 for each thumb screw. I was installing them when I had to stop for a moment and ask my self what the hell I was thinking. If I had an extra foot....I would have kicked my own ass.

Steve
Click to expand...

here you go.

image_zpse20e2f32.jpg
 
Steve500dancer said:
Glued it in place tonight with some industrial strength adhesive. I mean high strength. Took me an hour to peel and scrub it off my fingers. Took lacquer thinner and a scrub brush. I think I will use my latex gloves the next time I use that stuff. Steve
Click to expand...

Steve, this project is on my spring list as the insulation under the top of the genny enclosure is really starting to sag. Can you be more specific as to the adhesive you used? How did you apply it (spray, roller etc)? Does it appear to be working to hold the panels in place so far??
 
don't know if the use of mechanical hangers would work for this project or not....you glue the base of the hanger in place with 3M 5200...once the 5200 has cured you pierce the insulation with the pin...then a cap goes on the pin to secure the insulation in place....this is what i am going to use with my soundproofing mat for my engine cover....if interested do a google search for 'mechanical insulation hangers'.....

cliff


SAH.jpg
 
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Update, fired the generator up yesterday and the new insulation definitely made a huge difference. I still don't have the little door on the front but it definitely is quiet and for an 11KW diesel Generator that says a lot.

I actually think it is quieter the my 4.5 gasser on my 2001 340. That didn't have a sound shield but was pretty quiet.

I still have to put my handles on and my new decals when they get them done next week. I think it looks pretty good now.

utusysu6.jpg

Before
2u8uqeva.jpg

ja5atuhy.jpg

2aruvydy.jpg




Steve
 
Nice work. Does anything protect the newly finished metal from getting scratched and chipped by the aluminum base if theres vibration or just from removing/replacing panels?

Rusty should get you on the refit payroll.
 
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